// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics.UserInterface;

namespace osu.Game.Overlays
{
    public abstract class OnlineOverlay<T> : FullscreenOverlay<T>
        where T : OverlayHeader
    {
        protected override Container<Drawable> Content => content;

        protected readonly OverlayScrollContainer ScrollFlow;
        protected readonly LoadingLayer Loading;
        private readonly Container content;

        protected OnlineOverlay(OverlayColourScheme colourScheme)
            : base(colourScheme)
        {
            FillFlowContainer flow = new FillFlowContainer
            {
                AutoSizeAxes = Axes.Y,
                RelativeSizeAxes = Axes.X,
                Direction = FillDirection.Vertical
            };

            if (Header != null)
                flow.Add(Header.With(h => h.Depth = -float.MaxValue));

            flow.Add(content = new Container
            {
                RelativeSizeAxes = Axes.X,
                AutoSizeAxes = Axes.Y
            });

            base.Content.AddRange(new Drawable[]
            {
                ScrollFlow = new OverlayScrollContainer
                {
                    RelativeSizeAxes = Axes.Both,
                    ScrollbarVisible = false,
                    Child = flow
                },
                Loading = new LoadingLayer(true)
            });
        }
    }
}